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6. (a) Given == 2-23i.Find |=| and arg (=*). Hence, solve z=2-23i leave your answers in polar form. (b) Given that z = 1

6. (a) Given == 2-23i.Find |=| and arg (=*). Hence, solve z=2-23i leave your answers in polar form. (b) Given that z = 1 + i is a root of the polynomial equation z4-4z3 +11z2 - 14z + 10 = 0. Find the other roots of the polynomials. (Leave all your answers in exact form) 5 marks 5 marks

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